1 /* $OpenBSD: v3451.c,v 1.9 2006/03/17 19:17:13 moritz Exp $ */
2 /* $NetBSD: v3451.c,v 1.6 1997/02/11 09:24:20 mrg Exp $ */
3
4 /*-
5 * SPDX-License-Identifier: BSD-3-Clause
6 *
7 * Copyright (c) 1983, 1993
8 * The Regents of the University of California. All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35 /*
36 * Routines for calling up on a Vadic 3451 Modem
37 */
38 #include "tip.h"
39
40 static jmp_buf Sjbuf;
41
42 static void vawrite(char *, int);
43 static int expect(char *);
44 static void alarmtr(int);
45 static int notin(char *, char *);
46 static int prefix(char *, char *);
47
48 int
v3451_dialer(char * num,char * acu)49 v3451_dialer(char *num, char *acu)
50 {
51 sig_t func;
52 int ok;
53 int slow = number(value(BAUDRATE)) < 1200;
54 char phone[50];
55 struct termios cntrl;
56
57 /*
58 * Get in synch
59 */
60 vawrite("I\r", 1 + slow);
61 vawrite("I\r", 1 + slow);
62 vawrite("I\r", 1 + slow);
63 vawrite("\005\r", 2 + slow);
64 if (!expect("READY")) {
65 printf("can't synchronize with vadic 3451\n");
66 #ifdef ACULOG
67 logent(value(HOST), num, "vadic", "can't synch up");
68 #endif
69 return (0);
70 }
71 tcgetattr(FD, &cntrl);
72 term.c_cflag |= HUPCL;
73 tcsetattr(FD, TCSANOW, &cntrl);
74 sleep(1);
75 vawrite("D\r", 2 + slow);
76 if (!expect("NUMBER?")) {
77 printf("Vadic will not accept dial command\n");
78 #ifdef ACULOG
79 logent(value(HOST), num, "vadic", "will not accept dial");
80 #endif
81 return (0);
82 }
83 (void)snprintf(phone, sizeof phone, "%s\r", num);
84 vawrite(phone, 1 + slow);
85 if (!expect(phone)) {
86 printf("Vadic will not accept phone number\n");
87 #ifdef ACULOG
88 logent(value(HOST), num, "vadic", "will not accept number");
89 #endif
90 return (0);
91 }
92 func = signal(SIGINT,SIG_IGN);
93 /*
94 * You cannot interrupt the Vadic when its dialing;
95 * even dropping DTR does not work (definitely a
96 * brain damaged design).
97 */
98 vawrite("\r", 1 + slow);
99 vawrite("\r", 1 + slow);
100 if (!expect("DIALING:")) {
101 printf("Vadic failed to dial\n");
102 #ifdef ACULOG
103 logent(value(HOST), num, "vadic", "failed to dial");
104 #endif
105 return (0);
106 }
107 if (boolean(value(VERBOSE)))
108 printf("\ndialing...");
109 ok = expect("ON LINE");
110 signal(SIGINT, func);
111 if (!ok) {
112 printf("call failed\n");
113 #ifdef ACULOG
114 logent(value(HOST), num, "vadic", "call failed");
115 #endif
116 return (0);
117 }
118 tcflush(FD, TCIOFLUSH);
119 return (1);
120 }
121
122 void
v3451_disconnect(void)123 v3451_disconnect(void)
124 {
125 close(FD);
126 }
127
128 void
v3451_abort(void)129 v3451_abort(void)
130 {
131 close(FD);
132 }
133
134 static void
vawrite(char * cp,int delay)135 vawrite(char *cp, int delay)
136 {
137 for (; *cp; sleep(delay), cp++)
138 write(FD, cp, 1);
139 }
140
141 static int
expect(char * cp)142 expect(char *cp)
143 {
144 char buf[300];
145 char *rp = buf;
146 int timeout = 30, online = 0;
147
148 if (strcmp(cp, "\"\"") == 0)
149 return (1);
150 *rp = 0;
151 /*
152 * If we are waiting for the Vadic to complete
153 * dialing and get a connection, allow more time
154 * Unfortunately, the Vadic times out 24 seconds after
155 * the last digit is dialed
156 */
157 online = strcmp(cp, "ON LINE") == 0;
158 if (online)
159 timeout = number(value(DIALTIMEOUT));
160 signal(SIGALRM, alarmtr);
161 if (setjmp(Sjbuf))
162 return (0);
163 alarm(timeout);
164 while (notin(cp, buf) && rp < buf + sizeof (buf) - 1) {
165 if (online && notin("FAILED CALL", buf) == 0)
166 return (0);
167 if (read(FD, rp, 1) < 0) {
168 alarm(0);
169 return (0);
170 }
171 if (*rp &= 0177)
172 rp++;
173 *rp = '\0';
174 }
175 alarm(0);
176 return (1);
177 }
178
179 /*ARGSUSED*/
180 static void
alarmtr(int signo)181 alarmtr(int signo)
182 {
183 longjmp(Sjbuf, 1);
184 }
185
186 static int
notin(char * sh,char * lg)187 notin(char *sh, char *lg)
188 {
189 for (; *lg; lg++)
190 if (prefix(sh, lg))
191 return (0);
192 return (1);
193 }
194
195 static int
prefix(char * s1,char * s2)196 prefix(char *s1, char *s2)
197 {
198 char c;
199
200 while ((c = *s1++) == *s2++)
201 if (c == '\0')
202 return (1);
203 return (c == '\0');
204 }
205